Extrusion Block- Product Scope

Extrusion Block-Product Scope

The extrusion block is the central component of the test. The sponsor requested that the extrusion block be modeled after Dr. Gray’s archetype and produce similar test specimen profiles. Therefore, the block must be able to withstand the force from a 7mm spherical projectile traveling at a speed of 400 m/s and the extruding section must be able to reduce the diameter of the projectile by 70 percent .It should be able to withstand multiple test and resist deformation in the extruding section. It should incorporate a clamshell design for retrieval of the projectile. It can weigh between 10 and 150 pounds. The length of the extrusion section cannot exceed 2 inches. In order for the experiment to be successful, the exit of the specimen is to be photographed using shadow photography. Thus the rear of the extrusion section should be visible for the camera. The extrusion block must be able to be set up without readjusting the camera and lens or the lasers as the adjustments would take very fine tuning. If possible, the sponsor would like the block to be able to be bolted into the table using preexisting bolt holes from his Taylor test.

Dr. Gray's Test Specimen Profiles